EP0991557A1 - Schräger festhaltegriff für einen rollenkoffer - Google Patents
Schräger festhaltegriff für einen rollenkofferInfo
- Publication number
- EP0991557A1 EP0991557A1 EP98934272A EP98934272A EP0991557A1 EP 0991557 A1 EP0991557 A1 EP 0991557A1 EP 98934272 A EP98934272 A EP 98934272A EP 98934272 A EP98934272 A EP 98934272A EP 0991557 A1 EP0991557 A1 EP 0991557A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- handle
- wheeled case
- case
- wheeled
- wheels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C13/00—Details; Accessories
- A45C13/26—Special adaptations of handles
- A45C13/262—Special adaptations of handles for wheeled luggage
Definitions
- This invention relates to a case or luggage that may be wheeled in any one of the four directions parallel to the front, rear, and two side walls of the case or luggage and, in particular, to handles attached to such luggage to effect such wheeling.
- a case or luggage of a generally parallelepiped shape has six walls, namely, a top wall, bottom wall, front wall, rear wall, and two side walls and may have wheels or other rolling members placed on the bottom wall of the luggage to permit wheeling the luggage in any one or more of four directions parallel to the front, rear, and two side walls.
- a handle which preferably is mounted in the interior of the case and extends out to its full length, is used.
- the handle is normally mounted so that it is substantially parallel to one of the walls of the case.
- a handle inclined at an angle to the wall of the case on which the handle is mounted will result in a handle whose top grasping surface is less elevated from a supporting surface for the case than a conventional parallel handle of equivalent length.
- the inclined handle will also allow the user to push or pull the case at a range of angles to the surface with increased rotational stability over that possible with a conventional parallel handle.
- the most closely related art of which the applicant is aware is Waddell et al., United States Patent Number 5,630,521. That patent generally discloses a case with an inclined handle, but requires that the case be trapezoidal or be supported by wheels giving it a tilt in the upright position so that in either event the case is not perpendicular to the supporting surface when it is upright.
- the invention comprises an inclined handle structure for a wheeled case or other wheeled luggage which increases the comfort of the user and results in better rotational stability of the case while it is being rolled than available for a conventional parallel handle.
- a first embodiment of the invention comprises an inclined handle structure mounted in the portion of a partially wheeled case furthest from a supporting surface on which the wheels rest.
- the inclined handle structure comprises two tubes fixedly mounted at an angle between the horizontal and the vertical on the interior of the side walls of the case.
- the legs of a U-shaped telescoping handle are mounted in the tubes so that the handle can be extended and retracted.
- the top element of the U-shaped telescoping handle spanning between the legs of the U-shaped telescoping handle is coplanar with the legs.
- a second embodiment of the invention differs from the first in that the top portion of the U-shaped telescoping handle spanning between the legs is not coplanar with the legs for adjustment purposes to increase the comfort of a particular user.
- a third embodiment of the invention replaces the fixed supports on one side of the wheeled case in the first embodiment of the invention with wheels.
- a fourth embodiment of the invention differs from the first embodiment in that the legs of the U-shaped telescoping handle are designed to resist breakage if the wheeled case falls to a supporting surface with the U-shaped handle partially or fully extended.
- An object of the invention is to provide a means to increase the comfort of a user in rolling his wheeled case or other wheeled luggage by decreasing the height at which the handle of the wheeled case or other wheeled luggage must be grasped.
- a further object of the invention is to provide a means to increase the rotational stability of wheeled cases when being rolled by users.
- a still further object of the invention is to allow users to wheel their luggage at an increased range of angles to the vertical while decreasing the torque that must be exerted by the users to maintain the rotational stability of their luggage.
- Fig. 1 is a side elevation view of a prior art case and handle in the vertical position.
- Fig. 2 is a side elevation view of a prior art case and handle in a position at an angle to the vertical position such that the center of gravity of the case is in a horizontal position to the rear of the wheels on which the case is supported.
- Fig. 2A is a simplified force diagram for a conventional parallel handled case in a tipped position.
- Fig. 3 is a side elevation view of a first embodiment of the invention showing a case and an inclined handle in the retracted position and the extended postion of the inclined handle in dotted lines.
- Fig. 4 is a side elevation view of the first embodiment of the invention showing a case and an inclined handle in the extended position, the case being at an angle to the vertical such that the center of gravity of the case is at the same horizontal position as the wheels on which the case is supported.
- Fig. 5 is a perspective view of the first embodiment of the invention.
- Fig. 6 is a cross-sectional view taken along section lines 6-6 in Fig. 5.
- Fig. 7 is a cross-sectional view of the top portion of the inclined handle in a second embodiment of the invention.
- Fig. 8 is a simplified force diagram of an inclined handled case tipped so that the center of gravity of the case is in front of the supporting wheels.
- Fig. 8 A is an enlargement of a portion of Fig. 8.
- Fig. 9 is a simplified force diagram of an inclined handled case tipped so that the center of gravity of the case is in back of the supporting wheels.
- Fig. 9 A is an enlargement of a portion of Fig. 9.
- Fig. 10 is a side elevation view of a third embodiment of the invention.
- Fig. 11 is a side elevation view of a fourth emobodiment of the invention with the wheeled case in a fallen position supported by the inclined handle.
- Fig. 11A is a first detailed embodiment of the portion of Fig. 11 indicated therein.
- Fig. 11B is a second detailed embodiment of the portion of Fig. 11 indicated therein.
- Fig. 11C is a third detailed embodiment of the portion of Fig. 11 indicated therein.
- Fig. 11D is a cross-sectional view of Fig. 11C taken along section lines 11D-11D in Fig. llC.
- Fig. HE is a detail of an area in Fig. 11C indicated therein.
- Fig. 11F is a fourth detailed embodiment of the portion of Fig. 11 indicated therein.
- Fig. 11G is a cross-sectional view of Fig. 1 IF taken along section lines HG-llG in Fig. 11F.
- Fig. 11H is a detail of an area in Fig. 11G indicated therein.
- Fig. 12 is an enlarged portion of Fig. 11 showing the wheeled case in a fallen position with a portion of the inclined handle lying flat on a supporting surface.
- a wheeled case 10 of a generally parallelepiped shape is shown in a position perpendicular to the surface 11 on which it is supported equipped with a conventional handle 12 which is substantially parallel to the rear wall 14 of the case.
- Fig. 2 shows the case 10 in a tipped position resting on wheels 16 at the bottom of the case.
- the center of gravity 18 of the case is in a horizontal position to the rear of the wheels 16 as demonstrated by the vertical dotted line 20 drawn through the center of gravity 18. In this position, the case 10 is rotationally unstable.
- FIG. 2A shows a simplified force diagram for the conventional parallel handled case in a tipped position.
- the position of the case 10 shown in solid lines 22 is such that the horizontal position of the center of gravity 18 is directly over the wheels 16.
- the weight of the case, W, 24 falls right over the wheels 16 and exerts zero moment on the wheels 16.
- the line of the force, F, 26 exerted on the handle by the user substantially passes through the wheels 16, we can assume a zero moment arm for this force about the wheels also, and thus zero moment exerted about the wheels 16 by the force, F 26.
- FIG. 3 shows a first embodiment of the invention.
- a wheeled case 32 has a center of gravity 34 and rests on a supporting surface 36 with wheels 38 contacting the supporting surface 36.
- the wheeled case has a front wall 40, a rear wall 42, a top wall 44, a bottom wall 46, and two side walls 48.
- a cross-section taken perpendicularly to the front wall 40 and the rear wall 42 will disclose a substantially rectangular cross- section comprised of the front wall 40, the rear wall 42, the top wall 44, and the bottom wall 46.
- a cross-section taken perpendicularly to the two side walls 48 will disclose a substantially rectangular cross-section comprised of the two side walls 48, the top wall 44, and the bottom wall 46.
- Fixed supports 50 support the side of the case 32 opposite the wheels 38.
- the inclined handle 52 is shown in the fully retracted position with the fully extended position being shown in dotted lines 54.
- Figure 4 shows the first embodiment of the invention in a tipped position grasped by a user 56.
- the center of gravity 34 is shown in a horizontal position which is the same as the wheels 38 as demonstrated by the vertical dotted line 58 drawn through the center of gravity 34.
- the decreased angle of the inclined handle 52 to the horizontal compared to the angle of the parallel handle 12 to the horizontal (see Fig. 2) when both cases 10, 32 are in the tipped position reduces the height at which a user 56 can grip the handle and increases the comfort of the user 56 in rolling the case 32.
- Fig. 5 shows that the inclined handle 52 is U-shaped which is conventional in the art.
- Fig. 6 illustrates the mounting 60 of the handle 52.
- the mounting comprises two tubes 62 connected by fixed attachments to the interior of the side walls 48 of the case 32.
- the position of the mounting tubes 62 as shown in Fig. 6 toward the top of the side walls 48 frees the remainder of the height of the case 32 for the unimpeded storage of clothing or other items.
- the mounting tubes (not shown) of the handle 12 in the interior of the case 10 occupy a substantial portion of the rear wall 14 of the case 10, often causing interference with the storage of clothing or other items.
- the inclined handle 52 slides within the tubes 62 extending to a maximum length outside the case 32 and retracting to a minimum length outside the case 32.
- Fig. 7 shows the difference in cross-section between a second embodiment of the invention and the first embodiment of the invention.
- the top portion 66 of the U-shaped inclined handle 52 is coplanar with the legs 68 of the U-shaped inclined handle 52 (see Fig. 5).
- the top portion 70 of the U-shaped inclined handle 52 is outside the plane of the legs 72 of the handle 52 as an adjustment which may increase the comfort of the user 56 in rolling the case 32.
- the inclined handle 52 allows the case 32 to be oriented at any arbitrary angle within a wide range by the user 56, and still remain rotationally stable without an additional force other than axial force being applied to the inclined handle 52 by the user 56, provided that a certain value of force is exerted by the user 56 on the inclined handle 52.
- rotational stability without application of additional force other than axial force to the handle is only possible when the case 10 is oriented at an angle such that the center of gravity 18 has the same horizontal position as the wheels 16.
- the simplifying assumption is made that the diameter of the wheels 38 is negligible compared to the other dimensions of the case 32 and, thus, that diameter is ignored. This assumption is reasonable for wheeled cases conventional in the art.
- the pulling force F 76 is assumed to be exerted by the user 56 along the axis of the inclined handle 52.
- the inclined handle 52 is inclined at a counterclockwise angle, ⁇ , 78 (assumed to be positive; ⁇ - 0° corresponds to the condition of a parallel handle) with respect to the rear wall 42 of the case 32.
- the weight of the case 32, W, 80 acts through the center of gravity 34.
- the case 32 has a height, h, 82 and a depth, d, 84.
- tan a ⁇ d/h implies that ⁇ tan ' ' (d/h) (tan " ' (d/h) is mathematical notation for the inverse tangent of d/h), tan " ' (d/h) ⁇ 45° because d/h ⁇ 1 , and we require that ⁇ 0° since all angles of tip, , 74 are assumed to be positive in the counterclockwise direction as previously stated.
- any user would probably desire the inclined handle 52 to be at least horizontal, or in other words, at an angle such that the grasped end of the handle is at least at the same height as the portion of the handle at the point of attachment to the case 96, regardless of the angle, , at which the luggage is tilted.
- the user would desire that 0° ⁇ ⁇ ⁇ 90° - ⁇ .
- the simplifying assumption is made that the diameter of the wheels 38 is negligible compared to the other dimensions of the case 32 and, thus, that diameter is ignored. This assumption is reasonable for wheeled cases conventional in the art.
- the pushing force F 100 is assumed to be exerted by the user 56 along the axis of the inclined handle 52.
- the weight of the case 32, W, 104 acts through the center of gravity 34.
- the case 32 has a height, h, 106 and a depth, d, 108.
- 90° - a implies that a ⁇ 90° - ⁇ .
- rotational stability for the inclined handled case can be achieved with only axial force being applied to the handle over a large range of angles of tip, .
- the range of angles of tip is limited by the desirability of the handle being at least horizontal for any given a and the angle of the handle with respect to the rear of the case, ⁇ .
- ⁇ the angle of the handle with respect to the rear of the case
- an angle of tip from 0° to 50° was permissible, given the constraint of keeping the handle horizontal.
- This rotational stability contrasts with the conventional parallel handled case where we demonstrated that axially directed force along the handle would only assure rotational stability for an angle of tip such that the center of gravity was over the wheels.
- the first force analysis for the center of gravity in front of the wheels showed that, for angles of inclination of the handle, ⁇ , 78 of at least 30° , the pulling force F 76 exerted by the user to achieve rotational stability did not exceed the weight of the case. Moreover, to minimize F 76, a value of ⁇ 102 of 90° - tan " ' (d/h) was derived.
- the second force analysis for the center of gravity in back of the wheels likewise showed that, for 0 > 30°, the pushing force F 100 to be exerted by the user to achieve rotational stability did not exceed the weight of the case.
- An optimal value of ⁇ 102 of 90° - tan ⁇ (d/h) to minimize F 100 was found which was the same as the value from the first force analysis.
- both of the angular ranges for pulling and pushing will be equal to tan ' (d/h), and tan ' (d/h) is the maximum angular range for pulling in any event, which can be seen from the first force analysis.
- the combination of both analyses indicate a preferable range for the angle at which the inclined handle is set of 30° to 90° - (2 tan " ' (d/h)), assuming that 90° - (2 tan _1 (d/h)) is greater than 30°. If this assumption is not true, then an angle of approximately 30° is preferable.
- Fig. 10 shows a third embodiment of the invention which differs from the first embodiment of the invention insofar as the fixed supports 50 are replaced by front wheels 122 mounted on swivelling attachments or equivalent devices which allow the front wheels 122 to rotate about their vertical axes.
- the front wheels 122 allow rolling of the case 124 in the vertical position.
- Fig. 11 shows a fourth embodiment of the invention which differs from the first embodiment of the invention in that it entails a design of the legs 132 of the inclined U-shaped telescoping handle 134 to prevent breakage of the inclined U-shaped telescoping handle 134 if the wheeled case 136 falls as shown in Fig. 11.
- the wheeled case 136 is depicted in a position where it has fallen so that the legs 132 and the member 138 of the inclined U-shaped telescoping handle 134 spanning the legs 132 support the case 136, the member 138 resting on the supporting surface 140.
- the handle 134 is in its fully extended position.
- the legs 132 have been designed to allow them to rotate, in at least one location, out of their longitudinal axes 141 when the legs 132 are straight, thus reducing the chance that the legs 132 will break at another location.
- the legs 132 are cut preferably at a location 142 adjacent to the location at which the legs 132 enter the wheeled case 136 when the inclined U-shaped telescoping handle 134 is fully extended.
- an optional additional cut in the legs 132 may be made at location 144 substantially at the midpoint of the portion of the legs 132 extending beyond the wheeled case 136 when the handle 134 is fully extended. This optional additional cut at location 144 most advantageously provides for the condition of a partially extended handle 134 with as few additional cuts in the legs 132 as possible.
- a first alternative comprising a spring 146 loaded in the interior of the legs 132.
- the arrows 148 show the direction of rotation of the cut pieces 150, 152 of the legs 132 when impact of the handle 134 with the supporting surface 140 occurs.
- the top portions 154 of the edge of the cut pieces 150, 152 are cut back in a circular fashion to prevent interference of the top portions 154 when the cut pieces 150, 152 rotate.
- a second alternative substitutes a flexible polyvinyl chloride (PVC) rod 156 for the spring 146 in Fig. 11 A.
- the PVC rod 156 is fastened to the interior of each leg 132 spanning the cut in each leg 132.
- the fastening means comprise pins or other conventional means.
- the PVC rod is preferably of a smaller diameter than the interior diameter of the legs 132 to furnish an allowance for rotation of the cut pieces 157, 159 of the legs 132 upon impact before the PVC rod 156 is bent by such impact.
- a third alternative is shown which employs a pin 158 to permit the cut pieces 162, 166 of each of the legs 132 to rotate about the pin 158.
- the pin 158 is mounted from twin brackets 160 which are attached to one cut piece 162 of leg 132.
- the free ends 164 of the brackets 160 are located outside the exterior diameter of the other cut piece 166.
- the pin 158 passes through the other cut piece 166 and the portion of the brackets 160 adjacent to the free ends 164.
- the pin 158 offers sufficient frictional resistance against the rotation of the two cut pieces 162, 166 to prevent such rotation on ordinary use of the wheeled case 136, but allows such rotation when a substantial force is applied to the legs 132 in a direction normal to the longitudinal axes 141 of the legs 132, when the legs 132 are straight, such as when the wheeled case 136 falls to a supporting surface 140 in the position shown in Fig. 11.
- This third alternative design may optionally be enhanced by providing a locking device as shown in Fig. HE to insure that the legs 132 remain straight in ordinary use.
- the locking device comprises a tongue 170 which is biased by a spring 168, the spring 168 being attached to the interior wall of the cut piece 166.
- the spring 168 and the tongue 170 are guided by and move longitudinally within a tube 171 attached to the interior wall of the cut piece 166.
- the tongue 170 fits within a groove 172 in the pin 158 when the pin 158 is in a position corresponding to the legs 132 being straight.
- the force exerted by the spring 168 on the tongue 170 seating the tongue 170 in the groove 172 offers additional resistance to a force exerted on the legs 132, normal to the longitudinal axes 141 of the legs 132, causing rotation of the cut piece 166 relative to the other cut piece 162, when compared to a design with no spring 168, tongue 170, and groove 172 being present since these components tend to keep the pin 158 from rotating when the legs 132 are straight.
- a fourth alternative which comprises a hinge 174, which is pinned or attached by other conventional means to each cut piece 176, 178, and a bracket 180 rigidly attached to a first one of the cut pieces 176.
- the free end 182 of the bracket 180 is locked to prevent rotation of the cut pieces 176, 178 by dual springs 184 biasing dual tongues 186, the dual springs 184 being attached to each side 188, 190 of the bracket 180.
- the dual tongues 186 are seated within dual grooves 192 in the interior wall of the second one of the cut pieces 178 during normal operation of the handle 134.
- the second one of the cut pieces 178 is cut away sufficiently along its bottom in a region 194 to allow the free end 182 of the bracket 180 to rotate downward without interfering with the second one of the cut pieces 178.
- the magnitude of force exerted on the legs 132 normal to the longitudinal axes of the legs 132 necessary to cause rotation of the cut pieces 162, 166 must not be so high that the normal force causes breakage of the legs 132 before rotation of the cut pieces 162, 166 occurs.
- an inclined handle could be mounted on the front wall 40 and the rear wall 42 of the case, thereby allowing the case to be wheeled in either of the two collinear directions parallel to the front and rear walls of the case, provided that sufficient and properly placed wheels are present on the case.
Landscapes
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/886,301 US5868406A (en) | 1997-07-01 | 1997-07-01 | Inclined handle for wheeled case |
US886301 | 1997-07-01 | ||
US3842 | 1998-01-07 | ||
US09/003,842 US6129365A (en) | 1997-07-01 | 1998-01-07 | Inclined handle for wheeled case |
PCT/US1998/013947 WO1999001327A1 (en) | 1997-07-01 | 1998-07-01 | Inclined handle for wheeled case |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0991557A1 true EP0991557A1 (de) | 2000-04-12 |
EP0991557A4 EP0991557A4 (de) | 2002-04-10 |
Family
ID=26672267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98934272A Withdrawn EP0991557A4 (de) | 1997-07-01 | 1998-07-01 | Schräger festhaltegriff für einen rollenkoffer |
Country Status (3)
Country | Link |
---|---|
US (1) | US6129365A (de) |
EP (1) | EP0991557A4 (de) |
WO (1) | WO1999001327A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030132080A1 (en) * | 2000-04-11 | 2003-07-17 | Dababneh Awwad J. | Ergonomically designed wheeled luggage |
US6942077B1 (en) * | 2000-06-28 | 2005-09-13 | Trg Assessories, L.L.C. | Towable wheeled-backpack |
EP1253837A4 (de) | 2000-11-02 | 2003-04-16 | Outrigger Inc | Ausziehbarer und im winkel einstellbarer handgriff für einen rollenkoffer |
US7097181B2 (en) * | 2001-11-02 | 2006-08-29 | Outrigger, Inc. | Angular handle assembly for wheeled luggage |
JP2003249377A (ja) * | 2001-12-18 | 2003-09-05 | Seiko Epson Corp | 表示装置及び電子機器並びに表示装置の製造方法 |
JP3705264B2 (ja) * | 2001-12-18 | 2005-10-12 | セイコーエプソン株式会社 | 表示装置及び電子機器 |
JP3823916B2 (ja) * | 2001-12-18 | 2006-09-20 | セイコーエプソン株式会社 | 表示装置及び電子機器並びに表示装置の製造方法 |
US20040031654A1 (en) * | 2002-08-15 | 2004-02-19 | Chang Wen Chen | Luggage case having inclined and readily usable handle |
AU2004100214B4 (en) * | 2003-06-27 | 2005-02-03 | Landor & Hawa International Limited | Suitcase |
US7458337B2 (en) * | 2006-07-25 | 2008-12-02 | Patti Callan | Portable cat litter box |
US9615638B2 (en) | 2006-12-07 | 2017-04-11 | Max Moskowitz | Wheeled suitcase with auxiliary wheels on legs and undercarriage therefor |
GB2453186B (en) * | 2008-02-20 | 2009-12-16 | Falcon Internat Bags Ltd | Luggage with tow handle |
NL1035689C2 (nl) * | 2008-07-11 | 2010-01-12 | Travelteq B V | Reisgoedinrichting. |
US8333271B2 (en) * | 2009-11-09 | 2012-12-18 | Gibson Brian D | Convertible luggage |
GB201017526D0 (en) * | 2010-10-18 | 2010-12-01 | Ultimate Products Ltd | Luggage |
US9993061B2 (en) * | 2016-01-13 | 2018-06-12 | Ronald Guyton | Backpack for smart self-balancing electric scooter |
GB2564455A (en) * | 2017-07-11 | 2019-01-16 | Antler Ltd | Suitcase |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5370409A (en) * | 1993-04-13 | 1994-12-06 | Latouche; Paul J. | Towable mobile fluid carrier |
US5555711A (en) * | 1995-06-29 | 1996-09-17 | Costa; Richard G. | Lawn rake with spring pivoting head |
US5630521A (en) * | 1996-04-23 | 1997-05-20 | Samsonite Corporation | Ergonomic upright wheeled luggage |
US5653319A (en) * | 1995-01-25 | 1997-08-05 | Wang; King-Sheng | Retractable handle for a wheeled travel bag |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2883731A (en) * | 1958-02-06 | 1959-04-28 | Wells Bessina | Buddy cart |
US4966379A (en) * | 1987-10-19 | 1990-10-30 | Mulholland Designs, Inc. | Reclinable wheelchair |
US5048649A (en) * | 1990-03-02 | 1991-09-17 | American Tourister, Inc. | Luggage with pull handle |
US5197579A (en) * | 1990-03-02 | 1993-03-30 | American Tourister, Inc. | Luggage with pull handle |
US5547053A (en) * | 1994-09-08 | 1996-08-20 | Liang; Joseph | Spring loaded luggage handle |
US5573027A (en) * | 1995-03-28 | 1996-11-12 | Hsiung; Yu-Kuang | Foldable tent frame structure |
US5842495A (en) * | 1996-11-07 | 1998-12-01 | Shelter Pro, Llc | Concealment shelter |
US5868406A (en) * | 1997-07-01 | 1999-02-09 | Outrigger, Inc. | Inclined handle for wheeled case |
-
1998
- 1998-01-07 US US09/003,842 patent/US6129365A/en not_active Expired - Fee Related
- 1998-07-01 EP EP98934272A patent/EP0991557A4/de not_active Withdrawn
- 1998-07-01 WO PCT/US1998/013947 patent/WO1999001327A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5370409A (en) * | 1993-04-13 | 1994-12-06 | Latouche; Paul J. | Towable mobile fluid carrier |
US5653319A (en) * | 1995-01-25 | 1997-08-05 | Wang; King-Sheng | Retractable handle for a wheeled travel bag |
US5555711A (en) * | 1995-06-29 | 1996-09-17 | Costa; Richard G. | Lawn rake with spring pivoting head |
US5630521A (en) * | 1996-04-23 | 1997-05-20 | Samsonite Corporation | Ergonomic upright wheeled luggage |
Non-Patent Citations (1)
Title |
---|
See also references of WO9901327A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6129365A (en) | 2000-10-10 |
WO1999001327A1 (en) | 1999-01-14 |
EP0991557A4 (de) | 2002-04-10 |
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18D | Application deemed to be withdrawn |
Effective date: 20040615 |